Home / 39,808.46-54,935.27-21,903.48

Finding the Fourth Proportional to 39,808.46, 54,935.27 and 21,903.48

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Solution

The fourth proportional to 39,808.46, 54,935.27 and 21,903.48 is: 30,226.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,808.46 : 54,935.27 = 21,903.48 : x
  2. Step 2: Convert to fraction form
    39,808.46/54,935.27 = 21,903.48/x
  3. Step 3: Cross multiply
    39,808.46x = 54,935.27 × 21,903.48
  4. Step 4: Simplify right side
    39,808.46x = 1,203,273,478.22
  5. Step 5: Solve for x
    x = 1,203,273,478.22/39,808.46
  6. Step 6: Final answer
    x = 30,226.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.